Fig. 6. Drosophila eye disc is partitioned into three domains. (A) Dorsal cells, ventral midline cells (yellow outline) and ventral cells (green outline) may develop independently. (B) Molecular interactions among N ligands and N in midline cells (yellow cells) result in the non-autonomous activation of L/Ser pathway to promote proliferation of the rest of the ventral domain (green cells).

Return to article